@inproceedings{df4f0ab433f8471a89d923428321aede,
title = "Nanoscale concave structures for field enhancement in organic thin films",
abstract = "A promising method for improving light-absorption in thin-film devices is demonstrated via electrode structuring using Anodic Alumina Oxide (AAO) templates. We present nano-scale concave Al structures of controlled dimensions, formed after anodic oxidation of evaporated high purity aluminum (Al) films and alumina etching. We investigate both experimentally and theoretically the field-enhancement supported by these concave nanostructures as a function of their dimensions. For the experimental investigations, a thin layer of organic polymer coating allows the application of a nondestructive laser ablation technique that reveals field-enhancement at the ridges of the Al nanostructures. The experimental results are complemented by finite-difference time-domain (FDTD) simulations, to support and explain the outcome of the laser ablation experiments. Our method is easily up-scalable and lithography-free and allows one to generate nanostructured electrodes that potentially support field-enhancement in organic thin-film devices, e.g., for the use in future energy harvesting applications.",
keywords = "Anodic Alumina Oxide, Al nanostructures, Field enhancement, organic thin films, Ablation Techniques",
author = "Goszczak, {Arkadiusz Jaroslaw} and Jost Adam and Cielecki, {Pawel Piotr} and Jacek Fiutowski and Horst-G{\"u}nter Rubahn and Morten Madsen",
year = "2015",
doi = "10.1117/12.2189484",
language = "English",
series = "Proceedings of SPIE, the International Society for Optical Engineering",
publisher = "SPIE - International Society for Optical Engineering",
editor = "Boardman, {Allan D.} and Tsai, {Din Ping}",
booktitle = "Plasmonics",
address = "United States",
note = "SPIE: Plasmonics: Metallic Nanostructures and Their Optical Properties XIII : SPIE Optics & Photonics ; Conference date: 09-08-2015 Through 13-08-2015",
}